Earlier, army chief General Dalbir Singh Suhag briefed Parrikar about the attack.

The Ministry is also likely to seek a formal report from the army about the assault which came just two months after the deadly Uri terror strike.

Sources said the Prime Minister was briefed in the morning and again after the operation was over.

A group of heavily-armed terrorists in police uniform stormed an army unit in Nagrota, about three kms from the Corps headquarters on the outskirts of Jammu city this morning, triggering an intense gunbattle that lasted for several hours.

Seven army personnel, including two officers, were killed in the attack before three terrorists were eliminated in an armed face-off which also involved a hostage-like situation with 12 soldiers, two women and as many children being held captive. All were later rescued, army spokesman said.

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